Why console.log in react runs twice

Question

Everytime I run my code on reactjs, console.log() runs twice in constructor,render, or in the components. Why does it do that?

class App extends Component {
  constructor(props){
    super(props);
    console.log("[App.js] constructor")
  }

does it answer - https://stackoverflow.com/questions/48846289/why-is-my-react-component-is-rendering-twice — Tarukami, Aug 17 '20 at 19:56

score 0 · Accepted Answer · answered Aug 17 '20 at 19:58

0

You are probably using React in Strict Mode. Hence it occurs twice. This wont happen when you use production build of your react app.
This might help you further

answered Aug 17 '20 at 19:58

Rishi Desai

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Why console.log in react runs twice

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